Adjustable lens-clamp.



H; SGUDDER & R. K. HOHMANN. ADJUSTABLE LENS CLAMP.

APPLICATION rum) DBO.'2,1907.

908,039 Patented Dec. 29; 1908.

Fig. 2.

WW 0 0 A WITNESSES INVENTOR HEWLETTHS CUDDER.

- I RTCHQBD KARL HMANN.

,na'v'f ATTORNEY THE zvorems PETERS co, \wzsumarou, u. c.

UNITED STATES PATENT ()FFICE.

HEWLETT SOUDDER AND RICHARD KARL HOHMANN, OF SAN DIEGO, OALIFORNIA.'

ADJUSTABLE LENS-CLAMP.

To all whom it may concern:

Be it known that we, HEWLETT SoUnnER and RICHARD KARL I-IOHMANN, jointinventors, citizens of the United States, and residents of San Diego, inthe county of San Diego and State of California, (whose postofiiceaddress is San Diego, California,) have invented new and usefulImprovements in Adjustable Lens-Clamps for Eyeglass- Frames.

This invention relates to combination mechanism for eye-glasses and hasfor its object to produce a simple, effective device of this characterwhich may be readily applied to any class of lens, or eyeglass ingeneral use, without necessitating any great change in the constructionof the glasses.

With these and other objects in view, the invention comprises the novelfeatures of construction and combination of parts more fully hereinafterdescribed and claimed.

In the accompanying drawings, Figure 1 shows a pair of eye-glasses withthe improved adjustable lens clamp attached complete for use. Fig. 2shows two parts of eyeglasses, showing the notch in the glasses with andwithout clamp. In Fig. 3 are three views of the eye-glass clampappliance, showing the side elevation and top or front view, also an endsectional view, as cut in two on lines 12 for the purpose of showingmore distinctly the pin which is a support to the clamp. Fig. 4 showstwo side elevations, as front or back, and also a top view of the mainpart of the clamp. Fig. 5 shows view inside and outside, and the topview and front elevation of the cover plate of the clamp. Fig. 6 showsanother kind of lens clamp, which fastens in a small hole in theeye-glass or lens, such as used now for clamp attached by ordinary screwfastening. Fig. 7 show stop side and front views of th s clamp. Fig. 8shows the loose plate of the clamp.

Similar letters refer to throughout the several views.

A are the lenses, B the nose guard and C the main part of the clamp,which may be applied either in front or back of lens as the case maydemand, but is for convenience to be applied as shown in the drawings.

Dis a coverplate, and is attached to the opposite side of the main part0, and is-provided with a hole T, that fits snug to pin E, said pin Ebeing secured to the main part C.

F is an adjustable spring which turns on similar parts Specification ofLetters Patent.

Application filed December 2, 1907. Serial No. 04,653.

Patented Dec. 29, 1908.

a pivot at one end, connected to the main part 0, and is intended torest in notch G of plate D when the clamp is properly connected to lensfor service. The main part C and plate D are provided with rims orflanges H which adjust the clamp in the notch K of the lens.

In Fig. 2 are shown a part of a lens having the notch K and also a partof the lens with the clamp attached. The spring F when drawn to thecenter of plate D rests firmly in notch or groove G, and is arrangedwith sufficient spring to take up the loose motion between the main partC and the cover plate D and also allows the different parts to yield toa strain that might be brought to bear on the lens or glass whendropped, or strained by other means, and which if they were constructedin a rigid form would cause the breakage of the glasses or lens,- thisbeing the object of the spring adjustment to prevent any breakage fromjar or strain due to accident.

Pin E that is inserted in hole T, when plate D is connected in itsproper position has a slotted end Y to adapt it to be spread to form aspring to take up lost motion and cause the pin to fit tight in hole Twhen connected for use. 7

O is the shoulder of the main part C of the eye-glass clamp which isintended to be made curved to fit on to different sized glasses, and theconnection with the flanges H allows it to give when strain is broughtupon it, and thus prevent the glass from breaking because of sudden jar.

In Fig. 6 another form of a lens clamp is shown with the main part 0attached that illustrates the form of clamp to be used with the ordinaryhole N in lens as now used for screw. Plate D is provided with aprojection L at one end which when placed in proper position is insertedinto a notch X at the shoulder of the main part 0 that prevents plate Dfrom slipping either way and with these changes and also omittingflanges H the main part 0 and plate D are practically the same as shownin Figs. 3, 4, and 5 as C and D.

It is obvious from the foregoing that there is produced an extremelysimple mechanism in which the different parts of the combinationeye-glass clamp are so arranged as to work harmoniously in conjunctionwith and to prevent the glass from being broken by a strain or jar thatmight be caused from the fall of the glasses or otherwise, and at thesame time provide an appliance that is strong and self adjusting, freefrom loose motion, and may with slight changes be applied to diiierentforms of glasses.

In attaining these ends it is to be understood that minor changes in theform, proportions and general assemblage of the parts herein set forthmay be resorted to Without departing from the spirit of the invention.

Having thus described our invention, What We claim as new and patentableis,

1. An eye-glass clamp comprising a main plate having a curved projectionforming a shoulder adapted to fit a lens, flanges adapted to adjust theclamp in a notch of the lens, a pin secured thereto, and an adjustablespring pivoted to the plate, a cover plate having a slot adapted toreceive the spring to hold the cover plate in position, and also a holeto re ceive the pin, the said pin having a slotted end to ada t it to bespread to form a spring to take up ost motion.

2. An eye-glass clamp comprising a main plate having a curved projectionforming a shoulder adapted to fit a lens, flanges adapted to adjust theclamp in a notch of the lens, a pin secured thereto, and an adjustablespring pivoted to the plate, a cover plate having a slot adapted toreceive the spring to hold the cover plate in position, flanges adaptedto adjust the clamp in a notch of the lens and also a hole to receivethe pin, the said pin having a slotted end to ada t it to be spread toform a spring to take up ost motion.

3. An eye-glass clamp comprising a main plate having a curved projectionforming a shoulder adapted to fit a lens, flanges adapted to adjust theclamp in a notch of the lens, an adjustable spring pivoted to the plateand also a hole to receive a pin, the said pin having'slotted ends toadapt it to be s read to form a spring at each end to take up 0stmotion, a cover plate having a slot adapted to receive the spring tohold the cover plate in position and also a hole to receive the pin.

4. An eye-glass clamp comprising a main plate having a curved projectionforming a shoulder adapted to fit a lens, a notch at the shoulderadapted to receive a projection, a pin, secured thereto, and anadjustable spring pivoted to the plate, a cover plate having a slotadapted to receive the spring to hold the cover plate in position, aprojection ada ted to be inserted in the notch, and also a ho e toreceive the pin, the said pin having a slotted end to adapt it to bespread to form a spring to take up lost motion.

5. An eye-glass clamp comprising a main plate having a curved projectionforming a shoulder adapted to lit a lens, a notch at the shoulderadapted to receive a projection, and an adjustable spring pivoted to theplate and also a hole to receive a pin, the said pin having slotted endsto adapt it to he s read to form a spring at each end to take up 0stmotion, a cover plate having a slot adapted to receive the spring tohold the cover plate in position, a projection adapted to be inserted inthe notch, and also a hole to receive the pin.

HEWLETT SCUDDER. RICHARD KARL HOHMANN.

Witnesses:

H. A. CROGHAN, J. W. MAsTER.

